
Group 1 - The semiconductor sector experienced a rise of 1.27% on September 18, with Huicheng Co. leading the gains [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] - Notable gainers in the semiconductor sector included Huicheng Co. with a closing price of 15.48, up 14.16%, and Zhongwei Company with a closing price of 253.18, up 11.43% [1] Group 2 - The semiconductor sector saw a net outflow of 4.388 billion yuan from institutional investors, while retail investors contributed a net inflow of 3.949 billion yuan [2] - The trading volume for Huicheng Co. reached 948,000 shares, with a transaction value of 1.486 billion yuan [1] - The overall market sentiment showed a mixed response, with some stocks experiencing significant declines, such as Dongxin Co. which fell by 7.49% [2]
